20001322 has 8 divisors (see below), whose sum is σ = 32729472. Its totient is φ = 9091500.

The previous prime is 20001307. The next prime is 20001341. The reversal of 20001322 is 22310002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20001299 and 20001308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454554 + ... + 454597.

It is an arithmetic number, because the mean of its divisors is an integer number (4091184).

Almost surely, 2^20001322 is an apocalyptic number.

20001322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20001322 is a deficient number, since it is larger than the sum of its proper divisors (12728150).

20001322 is a wasteful number, since it uses less digits than its factorization.

20001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909164.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20001322 is about 4472.2837566505. The cubic root of 20001322 is about 271.4477422945.

Adding to 20001322 its reverse (22310002), we get a palindrome (42311324).

The spelling of 20001322 in words is "twenty million, one thousand, three hundred twenty-two".